Hole saw



FIG. 1 is a side elevational view of a hole saw of the present design;

FIG. 2 is a top view of the hole saw of the present design;

FIG. 3 is a bottom view of the hole saw of the present design;

FIG. 4 is a side elevational view of the hole saw of the present design; taken from the left of the FIG. 1;

FIG. 5 is a side elevational view of the hole saw of the present design, taken from the right of FIG. 1;

FIG. 6 is a side elevational view of the hole saw of the present design, opposite side that shown in FIG. 1;

FIG. 7 is a perspective view of the hole saw of the present design; and,

FIG. 8 is a perspective view of the hole saw of the present design. 

The ornamental design for a hole saw, as shown. 